1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.taglib.ui;
24  
25  import com.liferay.portal.kernel.servlet.StringServletResponse;
26  import com.liferay.taglib.util.IncludeTag;
27  
28  import java.io.IOException;
29  
30  import javax.servlet.RequestDispatcher;
31  import javax.servlet.ServletContext;
32  import javax.servlet.ServletException;
33  import javax.servlet.http.HttpServletRequest;
34  import javax.servlet.http.HttpServletResponse;
35  import javax.servlet.jsp.JspException;
36  
37  /**
38   * <a href="PngImageTag.java.html"><b><i>View Source</i></b></a>
39   *
40   * @author Brian Wing Shun Chan
41   */
42  public class PngImageTag extends IncludeTag {
43  
44      public static void doTag(
45              String image, String height, String width,
46              ServletContext servletContext, HttpServletRequest request,
47              HttpServletResponse response)
48          throws IOException, ServletException {
49  
50          doTag(_PAGE, image, height, width, servletContext, request, response);
51      }
52  
53      public static void doTag(
54              String page, String image, String height, String width,
55              ServletContext servletContext, HttpServletRequest request,
56              HttpServletResponse response)
57          throws IOException, ServletException {
58  
59          request.setAttribute("liferay-ui:png_image:image", image);
60          request.setAttribute("liferay-ui:png_image:height", height);
61          request.setAttribute("liferay-ui:png_image:width", width);
62  
63          RequestDispatcher requestDispatcher =
64              servletContext.getRequestDispatcher(page);
65  
66          requestDispatcher.include(request, response);
67      }
68  
69      public int doEndTag() throws JspException {
70          try {
71              ServletContext servletContext = getServletContext();
72              HttpServletRequest request = getServletRequest();
73              StringServletResponse response = getServletResponse();
74  
75              doTag(
76                  getPage(), _image, _height, _width, servletContext, request,
77                  response);
78  
79              pageContext.getOut().print(response.getString());
80  
81              return EVAL_PAGE;
82          }
83          catch (Exception e) {
84              throw new JspException(e);
85          }
86      }
87  
88      public void setImage(String image) {
89          _image = image;
90      }
91  
92      public void setHeight(String height) {
93          _height = height;
94      }
95  
96      public void setWidth(String width) {
97          _width = width;
98      }
99  
100     protected String getDefaultPage() {
101         return _PAGE;
102     }
103 
104     private static final String _PAGE = "/html/taglib/ui/png_image/page.jsp";
105 
106     private String _image;
107     private String _height;
108     private String _width;
109 
110 }